Vagus nerve stimulation (VNS). Stimulation on the vagus nerve is a method of regulating the excitability of nerve cells without inducing seizures. The vagus nerve, which starts during the brainstem, has many branches, and vagal nerve stimulation is utilized medically to normalize coronary heart rate in individuals with cardiac arrhythmias. https://brainhealthusa.com/psychiatrist-in-santa-clarita-los-angeles-county/